Design And Implementation Of The Diploma Production System

This paper based on the current situation of the college students' diploma making in our country,design a set of lightweight college students diploma production system.Considering the system is used in school,the number of users usually to be small,the system doesn't use relational database,and uses a set of system of file instead.Of course there is another reason,students' diplomas should have certain confidentiality,so we can save the diploma as a file that the format is defined by ourself.In this way the security of the diploma would be greatly enhanced.By the way the diploma wou be easy to carry.The article solved three problems in order to normally use this system.Firstly access control of the system.The article decide to use role-based access control(RBAC)way to solve the problem of access control system after analyzing the current access control methods.After anaylizing currently commenly used methods--Coarse-grained RBAC and fine-grained RBAC,this paper put forward another RBAC control method--multi-granularity RBAC(FRBAC)control mechanism.FRBAC made some improvements on the basis of fine-grained,should be more suitable for the diploma system of the practical needments.Secondly,diploma issued problem.This paper use USB-KEY as signature tool,it implements the extract important information from the WEB page to sign.Lastly,login in the system safely.This paper use MD5 infomation abstract algorithm and RSA key mechanism,realize the encryption of the login process communication mechanism.During the implementtion of this system,I use the EIO frame as the basic development framework,it makes the development process more easier than use SSH and SpringMVC framework and so on.In order to carry the diploma conceniently,this paper design a kind of file to use as the diploma file.At the same time,I design a file reader to read this kind of file.This mehtod promotes confidentiality and portability of the diploma file.